Average power is lower, but peak is 2W, lowest power is 20mW. The handset varies its output power depending on how it's being received by the base station. In a bad location, the base station would command the handset to increase power.
I took a summer course at a local school. I learned the basics of programming and how to write simple programs in FOCAL (sort of like BASIC). This was in the 1960s. I was 13 or 14.
I would recommend something like this -- a class for beginners that's not part of "regular" school time (and so, not graded or affecting the time he needs to spend doing homework). Summer or winter break would be a perfect time.
Freedom to use your computer in the way that best meets your needs. Linux helps me do that by allowing me to install whatever software I choose to use.
Now, should a *distribution* include non-free software? My personal feeling is that it should not, but that a user should have no problem finding and installing it from a non-free repository.
In this case, I have to say that this may be the best advertising Linux ever had.
(as long as they ignore the "advice" from Best Buy's sales staff) More people are going to discover that Linux is a decent OS for their older desktops that are running (or not) virus-laden, crapware-encrusted versions of Windows for which they no longer have re-install media.
Maybe a 4x20 or a small graphic display with 8 bit interface. A lot easier to program (minimal graphics driver needed) and a whole heck of a lot cheaper than a color panel.
I had good luck at www.crystalfontz.com, but Digikey and Mouser have stuff as well.
We have used the TFT panels here at work, and they require a lot to get them up and running. Even if your mini-itx has a built in panel controller, the graphics driver is a not inconsiderable programming job (unless you are fortunate enough to have one included with your OS). You might well decide that the time spent trying to get a graphics display working would be better spent on bot functionality.
Sure, UNIX was on a SPARCstation, but then I tried Linux...solely to see if I could use a PC as an X-terminal off a UNIX system. It worked so well I began to wonder what Microsoft was missing.
Linux ran way faster on my 486-33 than Win3.1 did, and, more importantly, it didn't crash like Windows did when QEMM got confused.
Windows always seems to be playing catch-up. Apple got smart and built on the BSD foundation.
I'm an EE. We pay for several tools, others are open-source. We pay for several CAD tools, among them: schematic capture, PCB layout and, of course, the various firmware development tools for micros we use. Microchip makes available a non-optimizing compiler and IDE for free, you need to pay if you want the higher powered version.
Some tools are good, some have bugs that will never be fixed, due to vendor lock-in/market share. If open source tools put pressure on these vendors, I'm all for it. Some (not all) vendors are cruising along, continuing to sell tools they acquired when they bought a smaller company, with no intentions of upgrading them. I suspect they may not even have developers who know enough about the tools to really fix anything.
So, vendors; give us good tools worth paying for, and we'll pay you for them. The free ride is over, community-developed tools will eat your lunch, because they do what users want. No surprise there.
Important thing here is the parabolic shape and metal film (I used foamcore and aluminum foil)
If that doesn't work well, the trench is a lot of work, but will be worth it in the end. Ditch Witch is the only way to go here. Conduit is good. 1500 feet is a long way to go for ethernet, but since you will be using full duplex, there won't be any collisions and you'll be fine.
The actual US codebreaking was done at Nebraska Avenue in DC, which is about to be re-purposed or sold as well. True, you can't save everything, but Bletchley is a small facility with a great history and the mansion alone is worth saving for its quirky architecture.
Well, there's CDMA2000 and whatever competes with it (WCDMA?), iDEN (Nextel), WiDEN, PCS, all of which are in common use in the US (I think Sprint is already CDMA2000). Analog and TDMA are dead in the US. None of them use IMEI, but they all have some kind of equipment serial number you could track. iDEN is proprietary, so you might have a patent issue there.
T-Mobile uses only GSM 900, 1800 and 1900 in the US, never 800. So, they'd need to cover all four frequency bands and all the current and near-future protocols.
I still maintain it's not practical to be doing TDOA tracking on all handsets in a medium to large size mall. Aside from multipath issues, everyone of the thousand or so people in a mall has their own handset, there's the regulatory aspect of this. It's illegal in the US to monitor the cellular bands, and this includes the data and control channels. The company would need to apply for permission from the FCC, and that would open up the debate.
Article, though datelined "San Francisco", seems to refer to tracking being done in a GSM-only environment. They talk about looking at the IMEI of the handsets, which is a GSM term, and the locations mentioned seem to be in the UK.
In the US, they'd have to be decoding three to six different protocols on at least three frequency bands. Those nodes would cost a fortune. You'd have want that location information pretty badly to fund something like that. Not to mention multipath issues.
I know it would work in theory, but something tells me this company isn't tracking *all* handsets in a large mall. Of course, you'd only find that out once you pay for their reports...
A huge reason why Linux doesn't support as much hardware as Windows, is that the manufacturers will only release drivers for Windows.
I'm not sure who this benefits, but it's certainly the reason behind the "Linux doesn't recognize my...." complaints. So, I suggest that when we evaluate whether Linux is ready for whatever, we give it a pass on not supporting certain hardware.
Now, as to the Nvidia card, Linux supports mine quite well, and my wireless cards, and my Bluetooth dongle, all of which were problematic in the previous release. I'd say Linux is making good progress on peripheral support, in spite of reluctance on the part of vendors.
Neither is particularly geeky, and both of them use Ubuntu Linux for day-to-day email and web browsing. They both say they think it's faster and more dependable than WinXP.
Bletchley should be preserved, because so much that is important to technology today happened within those walls. Alan Turing worked there. The German domination of the North Atlantic was broken there.
It's hard for us in the US to imagine what the Brits went through during the war. Bletchley, along with the Battle of Britain, was one of their big successes on the home front.
It's all well and good to read about history, but there's something more gripping about a visit to where history was made.
If broadcasters want to use DRM to prevent me from recording their programming, that's fine with me. I'm not so attached to TV that I can't miss a show.
At some point, the DRM burden will be so heavy that I'll walk away. As will, I suspect, many others who do not want their lives orchestrated by the timing of non-recordable TV programs.
Broadcasters need to understand that there's a balance here. DRM is a burden. Some viewers will chose to bear the burden longer than others.
There are some companies offering (expensive) wireless broadband on 5 GHz. Maybe not on the tip of the Cape, though. When I checked, they were priced like T1s...prohibitively expensive.
I'm guessing they're not able to get DSL.
There's also the possibility of using WiFi access points and directional antennas to create a point-to-point link with someone who has broadband. I did this for my brother and it works well, just need that person willing to share their broadband connection.
No, "errno.h" is a sequence of characters. It's not property of The Open Group.
The file of the same name contains a series of definitions providing compatibility with the POSIX standard. You don't need to ask anyone's permission to use it in your code. If you want to buy an official copy of the POSIX standard, you may purchase it from The Open Group.
UNIX, however, *is* a trademark, and property of The Open Group.
I was surprised by the size of the Predator, and I don't recall ever having seen DarkStar before. There's a U2 in the back of the ground floor. And the mannequin is wearing a flight suit donated by Francis Gary Powers' family.
A very interesting exhibit on computers and flight, which includes an Apollo Guidance Computer.
Also did a trip to the National Cryptologic Museum, which is *well* worth the time it takes to get there. (Don't forget to pick up your NSA logo-wear at the gift shop!)
Actually, I do work in Massachusetts. Then we need to clone you.
Or buy some traffic light controllers that aren't based on gears and cams. At least they've finally figured out that burying loops of wire in roads that develop potholes every year wasn't a winning strategy.
Things seem to be getting better, just not fast enough. You'd think the more populous the state, and the worse the traffic problems, the more attention (and tax dollars) would be paid to traffic engineering and effective mass transit.
As for filtering, modern home theater equipment is more computer than TV or stereo, and this stuff is VERY sensitive to low quality poewr. A surge protector is WORTHLESS! You need power filtration with real time voltage regulation. Monster does a good job providing very high quality filtering systems for as little as $200-300. If you have high def, a suround sound stereo, a PS3 or xbox360, keep this in mind. 97% of all electronic failure is the result of low or inconsitent power. Surge protectors only stop massive oversurges (typically over 160 volts). Damage to computer electronics cn occur at voltage below 104 or above 116. Do your lights ever flicker in your house? Especially when your AC turns on or when your fridge kicks in? If so, GO BUY A POWER FILTER for every digital device in your house!!! Filtering isn't going to help. You'd need a honkin' big filter to fix flickering lamps or voltage surges/sags. Filters are most often used to keep high frequency noise from getting ON to the power lines.
I also take issue with your contention that under 104V or over 116 volts will damage a computer. The power supply on my computer states that it operates from 100-240V, 50/60 Hz. If you know how these supplies are designed, you won't be concerned with minor surges and sags...they take the raw AC, full wave rectify and filter it, and use the resulting +300 to +500 DC as the input to a step down (to 3 to 12 volts) switching regulator. Spikes don't make it past the transformer.
Surges are something else. Multi-cycle overvoltages can affect switching supplies (although this is unlikely in the US, as our 120V is at the low end of the switcher's operating range). The best way to protect against those, and a good investment anyway, is a small UPS from a good, reputable manufacturer. It'll save your data when the line goes out and block any dangerous surges.
UPSs can be picked up cheap, as most companies ditch them after the batteries die. Spend $25 or $50 on some new cells at Digikey and you have a perfectly good UPS. Ask your company IT people, they'll usually be happy to have you haul them away. Laptop owners already have one...the battery in your computer.
If your lights are flickering when your fridge kicks on, call an electrician. Your fridge should be on its own dedicated circuit, and if your lights are flickering, it's a sign that there's a high resistance connection between the fridge and your power feed. Get it investigated and fixed! If your AC is dimming your lights, you've may have too much load on that circuit, and you shouldn't be plugging your computer in to that outlet!
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Average power is lower, but peak is 2W, lowest power is 20mW. The handset varies its output power depending on how it's being received by the base station. In a bad location, the base station would command the handset to increase power.
http://www.techmind.org/gsm/
I took a summer course at a local school. I learned the basics of programming and how to write simple programs in FOCAL (sort of like BASIC). This was in the 1960s. I was 13 or 14.
I would recommend something like this -- a class for beginners that's not part of "regular" school time (and so, not graded or affecting the time he needs to spend doing homework). Summer or winter break would be a perfect time.
Freedom to use your computer in the way that best meets your needs. Linux helps me do that by allowing me to install whatever software I choose to use.
Now, should a *distribution* include non-free software? My personal feeling is that it should not, but that a user should have no problem finding and installing it from a non-free repository.
In this case, I have to say that this may be the best advertising Linux ever had.
(as long as they ignore the "advice" from Best Buy's sales staff) More people are going to discover that Linux is a decent OS for their older desktops that are running (or not) virus-laden, crapware-encrusted versions of Windows for which they no longer have re-install media.
Maybe a 4x20 or a small graphic display with 8 bit interface. A lot easier to program (minimal graphics driver needed) and a whole heck of a lot cheaper than a color panel.
I had good luck at www.crystalfontz.com, but Digikey and Mouser have stuff as well.
We have used the TFT panels here at work, and they require a lot to get them up and running. Even if your mini-itx has a built in panel controller, the graphics driver is a not inconsiderable programming job (unless you are fortunate enough to have one included with your OS). You might well decide that the time spent trying to get a graphics display working would be better spent on bot functionality.
Sure, UNIX was on a SPARCstation, but then I tried Linux...solely to see if I could use a PC as an X-terminal off a UNIX system. It worked so well I began to wonder what Microsoft was missing.
Linux ran way faster on my 486-33 than Win3.1 did, and, more importantly, it didn't crash like Windows did when QEMM got confused.
Windows always seems to be playing catch-up. Apple got smart and built on the BSD foundation.
If I don't own it, I can't trust it. If I pay you a considerable amount of money for a physical item, I own it.
If I own it, I get to decide what to do with it.
Take your SIM lock and go home.
I'm an EE. We pay for several tools, others are open-source. We pay for several CAD tools, among them: schematic capture, PCB layout and, of course, the various firmware development tools for micros we use. Microchip makes available a non-optimizing compiler and IDE for free, you need to pay if you want the higher powered version.
Some tools are good, some have bugs that will never be fixed, due to vendor lock-in/market share. If open source tools put pressure on these vendors, I'm all for it. Some (not all) vendors are cruising along, continuing to sell tools they acquired when they bought a smaller company, with no intentions of upgrading them. I suspect they may not even have developers who know enough about the tools to really fix anything.
So, vendors; give us good tools worth paying for, and we'll pay you for them. The free ride is over, community-developed tools will eat your lunch, because they do what users want. No surprise there.
A couple of WiFi access points. Make sure they have the little "rubber ducky" antennas.
Build four of these:
http://www.freeantennas.com/projects/template2/
and apply to the antennas...note the increase in signal level when properly aligned!
Important thing here is the parabolic shape and metal film (I used foamcore and aluminum foil)
If that doesn't work well, the trench is a lot of work, but will be worth it in the end. Ditch Witch is the only way to go here. Conduit is good. 1500 feet is a long way to go for ethernet, but since you will be using full duplex, there won't be any collisions and you'll be fine.
NCR Dayton Was where the US 4-rotor BOMBEs were manufactured, and Sugar Camp was where the WAVES workers were housed. There's a great book on it "The Secret in Building 26". http://www.amazon.com/Secret-Building-26-Americas-Against/dp/0375508074
The actual US codebreaking was done at Nebraska Avenue in DC, which is about to be re-purposed or sold as well. True, you can't save everything, but Bletchley is a small facility with a great history and the mansion alone is worth saving for its quirky architecture.
Well, there's CDMA2000 and whatever competes with it (WCDMA?), iDEN (Nextel), WiDEN, PCS, all of which are in common use in the US (I think Sprint is already CDMA2000). Analog and TDMA are dead in the US. None of them use IMEI, but they all have some kind of equipment serial number you could track. iDEN is proprietary, so you might have a patent issue there.
T-Mobile uses only GSM 900, 1800 and 1900 in the US, never 800. So, they'd need to cover all four frequency bands and all the current and near-future protocols.
I still maintain it's not practical to be doing TDOA tracking on all handsets in a medium to large size mall. Aside from multipath issues, everyone of the thousand or so people in a mall has their own handset, there's the regulatory aspect of this. It's illegal in the US to monitor the cellular bands, and this includes the data and control channels. The company would need to apply for permission from the FCC, and that would open up the debate.
Article, though datelined "San Francisco", seems to refer to tracking being done in a GSM-only environment. They talk about looking at the IMEI of the handsets, which is a GSM term, and the locations mentioned seem to be in the UK.
In the US, they'd have to be decoding three to six different protocols on at least three frequency bands. Those nodes would cost a fortune. You'd have want that location information pretty badly to fund something like that. Not to mention multipath issues.
I know it would work in theory, but something tells me this company isn't tracking *all* handsets in a large mall. Of course, you'd only find that out once you pay for their reports...
A huge reason why Linux doesn't support as much hardware as Windows, is that the manufacturers will only release drivers for Windows.
I'm not sure who this benefits, but it's certainly the reason behind the "Linux doesn't recognize my...." complaints. So, I suggest that when we evaluate whether Linux is ready for whatever, we give it a pass on not supporting certain hardware.
Now, as to the Nvidia card, Linux supports mine quite well, and my wireless cards, and my Bluetooth dongle, all of which were problematic in the previous release. I'd say Linux is making good progress on peripheral support, in spite of reluctance on the part of vendors.
Neither is particularly geeky, and both of them use Ubuntu Linux for day-to-day email and web browsing. They both say they think it's faster and more dependable than WinXP.
Linux doesn't suck any worse than Windows.
Bletchley should be preserved, because so much that is important to technology today happened within those walls. Alan Turing worked there. The German domination of the North Atlantic was broken there.
It's hard for us in the US to imagine what the Brits went through during the war. Bletchley, along with the Battle of Britain, was one of their big successes on the home front.
It's all well and good to read about history, but there's something more gripping about a visit to where history was made.
If broadcasters want to use DRM to prevent me from recording their programming, that's fine with me. I'm not so attached to TV that I can't miss a show.
At some point, the DRM burden will be so heavy that I'll walk away. As will, I suspect, many others who do not want their lives orchestrated by the timing of non-recordable TV programs.
Broadcasters need to understand that there's a balance here. DRM is a burden. Some viewers will chose to bear the burden longer than others.
Texas A&M page on the ants:
http://urbanentomology.tamu.edu/ants/exotic_tx.cfm
There are some companies offering (expensive) wireless broadband on 5 GHz. Maybe not on the tip of the Cape, though. When I checked, they were priced like T1s...prohibitively expensive.
I'm guessing they're not able to get DSL.
There's also the possibility of using WiFi access points and directional antennas to create a point-to-point link with someone who has broadband. I did this for my brother and it works well, just need that person willing to share their broadband connection.
If that's not from _A Sunburned Country_, it sounds just like it. Great book!
Lived in Melbourne as a kid. Great people, beautiful country.
No, "errno.h" is a sequence of characters. It's not property of The Open Group.
The file of the same name contains a series of definitions providing compatibility with the POSIX standard. You don't need to ask anyone's permission to use it in your code. If you want to buy an official copy of the POSIX standard, you may purchase it from The Open Group.
UNIX, however, *is* a trademark, and property of The Open Group.
I was surprised by the size of the Predator, and I don't recall ever having seen DarkStar before. There's a U2 in the back of the ground floor. And the mannequin is wearing a flight suit donated by Francis Gary Powers' family.
A very interesting exhibit on computers and flight, which includes an Apollo Guidance Computer.
Also did a trip to the National Cryptologic Museum, which is *well* worth the time it takes to get there. (Don't forget to pick up your NSA logo-wear at the gift shop!)
...the technical term is "tube".
There's a whole series of them.
Or buy some traffic light controllers that aren't based on gears and cams. At least they've finally figured out that burying loops of wire in roads that develop potholes every year wasn't a winning strategy.
Things seem to be getting better, just not fast enough. You'd think the more populous the state, and the worse the traffic problems, the more attention (and tax dollars) would be paid to traffic engineering and effective mass transit.
You'd think.
I also take issue with your contention that under 104V or over 116 volts will damage a computer. The power supply on my computer states that it operates from 100-240V, 50/60 Hz. If you know how these supplies are designed, you won't be concerned with minor surges and sags...they take the raw AC, full wave rectify and filter it, and use the resulting +300 to +500 DC as the input to a step down (to 3 to 12 volts) switching regulator. Spikes don't make it past the transformer.
Surges are something else. Multi-cycle overvoltages can affect switching supplies (although this is unlikely in the US, as our 120V is at the low end of the switcher's operating range). The best way to protect against those, and a good investment anyway, is a small UPS from a good, reputable manufacturer. It'll save your data when the line goes out and block any dangerous surges.
UPSs can be picked up cheap, as most companies ditch them after the batteries die. Spend $25 or $50 on some new cells at Digikey and you have a perfectly good UPS. Ask your company IT people, they'll usually be happy to have you haul them away. Laptop owners already have one...the battery in your computer.
If your lights are flickering when your fridge kicks on, call an electrician. Your fridge should be on its own dedicated circuit, and if your lights are flickering, it's a sign that there's a high resistance connection between the fridge and your power feed. Get it investigated and fixed! If your AC is dimming your lights, you've may have too much load on that circuit, and you shouldn't be plugging your computer in to that outlet!
The more you know...
The White House can't even manage to back up their emails. How are they going to manage a "Cyber Initiative"?
(whatever that is...I don't think I want to find out)